Details, datasheet, quote on part number: PIC18LF2431
CategoryMicrocontrollers => 8 bit
DescriptionCMOS Flash-based 8-bit Microcontroller <<<>>>10 Mips (100 Nanosecond Instruction Execution) Yet Easy-to-program (only 77 Single Word Instructions) CMOS Flash-based 8-bit Microcontroller Packs Microchip's Powerful Pic Architecture Into an 40- or 44-pin Package And is Upwards Compatible With The PIC16C5X, PIC12CXXX, PIC16CXX And PIC17CXX Devices And Thus Providing a Seamless Migration Path of Software Code to Higher Levels of Hardware Integration. PIC18F4331 Features a 'C' Compiler Friendly Development Environment, 128 Bytes of EePROM, Self-programming, an Icd, 2 Capture/compare/pwm Functions, 9 Channels of 10-bit Analog-to-digital (A/D) Converter, The Synchronous Serial Port CAN be Configured as Either 3-wire Serial Peripheral Interface (SPI ) or The 2-wire <<<>>>Inter-Integrated Circuit (I C ) Bus And Addressable Universal Asynchronous Receiver Transmitter (AUSART), 8MHz Internal RC Oscillator And 4 Channel 12-bit Motor Pwm, 2 Channel Quadrature Encoder. All of These Features Make it Ideal For Motor Control Critical Applications Including Power Tools, Consumer Appliance Motors, Industrial Motors And Automotive Motors For Windows or Sun Roofs Type of Applications.<<<>>>program Memory Type Flash <<<>>>Program Memory (bytes) 8192 <<<>>>RAM Bytes 768 <<<>>>EE Data Memory 256 <<<>>>IO Pins 34 <<<>>>Packages 40/PDIP 600mil,44/QFN,44/TQFP
CompanyMicrochip Technology, Inc.
DatasheetDownload PIC18LF2431 datasheet


Features, Applications
28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

Note the following details of the code protection feature on Microchip devices: Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. Microchip is willing to work with the customer who is concerned about the integrity of their code. Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable."

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Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights.

Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, MPLAB, PIC, PICmicro, PICSTART, PRO MATE and PowerSmart are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, microID, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartShunt and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Application Maestro, dsPICDEM,, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, microPort, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM,, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPIC, Select Mode, SmartSensor, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Serialized Quick Turn Programming (SQTP) is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2003, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper.

Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company's quality system processes and procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, non-volatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified.

to 4 channels with complementary outputs Edge- or center-aligned operation Flexible dead-band generator Hardware fault protection inputs Simultaneous update of duty cycle and period: - Flexible special event trigger output

Run CPU on, peripherals on Idle CPU off, peripherals on Sleep CPU off, peripherals off Idle mode currents down 5.8 µA typical Sleep current down 0.1 µA typical Timer1 oscillator, 1.8 µA typical, 32 kHz, 2V Watchdog Timer (WDT), 2.1 µA typical Two-Speed oscillator start-up

Three independent input capture channels: - Flexible operating modes for period and pulse width measurement - Special Hall Sensor interface module - Special event trigger output to other modules Quadrature Encoder Interface: - 2 phase inputs and one index input from encoder - High and low position tracking with direction status and change of direction interrupt - Velocity measurement

High current sink/source 25 mA/25 mA Three external interrupts Two Capture/Compare/PWM (CCP) modules: - Capture is 16-bit, max. resolution (TCY/16) - Compare is 16-bit, max. resolution 100 ns (TCY) - PWM output: PWM resolution to 10 bits Enhanced USART module: - Supports RS-485, RS-232 and LIN 1.2 - Auto-Wake-up on Start bit - Auto-Baud detect RS-232 operation using internal oscillator block (no external crystal required)

to 9 channels Simultaneous two-channel sampling Sequential sampling: or 4 selected channels Auto-conversion capability 4-word FIFO with selectable interrupt frequency Selectable external conversion triggers Programmable acquisition time

100,000 erase/write cycle enhanced Flash program memory typical 1,000,000 erase/write cycle data EEPROM memory typical Flash/data EEPROM retention: 100 years Self-programmable under software control Priority levels for interrupts X 8 Single-cycle Hardware Multiplier Extended Watchdog Timer (WDT): - Programmable period from to 131s Single-supply In-Circuit Serial ProgrammingTM (ICSPTM) via two pins In-Circuit Debug (ICD) via two pins - Drives PWM outputs safely when debugging

SSP 10-bit A/D CCP Slave EUSART SPI 2 (ch) I CTM Quadrature Encoder 14-bit PWM (ch)

Four crystal modes to 40 MHz Two external clock modes to 40 MHz Internal oscillator block: - 8 user selectable frequencies: 31 kHz to 8 MHz - OSCTUNE can compensate for frequency drift Secondary oscillator using @ 32 kHz Fail-Safe Clock Monitor: - Allows for safe shutdown of device if clock fails


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